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Factory address:Economic Development Zone, LuoTian County, Huanggang City, HuBei Prov., China 438000.
Office address: Room 701, Block 3, WeiLaiZhiGuang, Guanggu Avenue No.3 , Hongshan District, Wuhan, Hubei Pro., China430074
Pilot Operated Valve
316 stainless steel construction. May be used in pneumatic or hydraulic systems. Standard Buna N seals , other seals available. Large CV factor available .
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Pilot Operated Valve
Features
316 stainless steel construction.
May be used in pneumatic or hydraulic systems.
Standard Buna N seals , other seals available.
Large CV factor available.
Description
The NC valves are normally closed pressure pilot valves.Controlled by a pressure signal applied to a small integral pilot piston that actuates the valve.
The NO valves are normally open , block and bleed valves.Controlled by a pressure signal applied to a small integral pilot piston that actuates the valve.
The Universal (3U ) Valve are universal , low-pressure pilot valves. The valve body has both normally open and normally closed ports. It is controlled by a pressure signal acting on a small built-in pilot piston , which actuates the valve.
Structure and Specifications

Work Pressure | Up to 200 psig (13.8 bar) | Wetted Material | 316 SS ,X-750 , Buna N standard |
Pilot Pressure | 25–200 psig (1.6–13.8 bar) | Seal Material | Buna N standard |
Work Temperature | -40~212°F (-40~100°C) |
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in. (mm) | ||||||||
Valve size | Cv | Valve Ports | Pilot Port | A | B | C | D | H |
1/4" | 1.3 | 1/4" FNPT | 1/8" FNPT | 1.28 (32.5) | 1.36 (34.5) | 1.37 (34.8) | 1.28 (32.5) | 3.46 (87.9) |
3/8" | 2.1 | 3/8" FNPT | 1/8" FNPT | 1.28 (32.5) | 1.36 (34.5) | 1.77(45) | 1.63 (41.3) | 3.74 (95) |
1/2" | 4 | 1/2" FNPT | 1/4" FNPT | 1.5(38.1) | 1.49(38) | 1.97(50) | 2.5(63.5) | 4.72(120) |
3/4" | 6.6 | 3/4" FNPT | 1/4" FNPT | 1.77(45) | 1.49(38) | 2.26 (57.5) | 3.28 (83.4) | 5.85(148.5) |
Product Ordering Information
Order code: POV- SS -FN4-3A-N1
SS | FN4 | 3A | N1 | ||||
Code | Body Material | Code | Valve Ports | Code | Valve Type | Code | NACE MR-0175 |
SS | 316SS | FN4 | 1/4" FNPT | 3A | 3-way, NO | None | No |
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| FN6 | 3/8" FNPT | 3B | 3-way, NC | N1 | -18~120°C, Yes |
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| FN8 | 1/2" FNPT | 3D | 3-way, NC | N2 | -40~+120℃, Yes |
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| FN12 | 3/4" FNPT | 3U | 3-way, NC & NO |
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Only 3 U has 3/8" , 1/2" , and 3/4" ports .
3D pre-set pressure adjustable
Other sizes and types available upon request . For special requirements , please contact us .
Repair Kit
Repair kit:Contains all seals .
Maintenance Kit Order Code: KIT-POV- V4-N1
V4 | N1 | ||
Code | Valve size | Code | NACE MR-0175 |
V4 | 1/4" | None | No |
V6 | 3/8" | N1 | -18~120°C, Yes |
V8 | 1/2" | N2 | -40~120°C, Yes |
V12 | 3/4" |
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